// JavaScript Document
function menu1(id){ 
var i;	
for(i=1;i<=3;i++){
   var licw=document.getElementById("mod"+i);
	var yao=document.getElementById("lay"+i);
	if (i==id){ 
		licw.style.display = "block";
		yao.className="notice_cur";
	}
	else		 
	{ 	
	licw.style.display = "none";
	yao.className="";
	}
	
} 	
}

function menu4(id){ 
var i;	
for(i=1;i<=3;i++){
   var licw=document.getElementById("md"+i);
	var yao=document.getElementById("ly"+i);
	if (i==id){ 
		licw.style.display = "block";
		yao.className="cur_work";
	}
	else		 
	{ 	
	licw.style.display = "none";
	yao.className="";
	}
	
} 	
} 